Laszlo jastowsky



i No Drawing.

UNITE LASZLO JANOWSKY, F TORONTO, ONTARIO, CANADA.

PROCESS FOR TREATING COMMERCIAL CALCIUM CARBJlD.

- To all whom it may concern:

Be it known that I, Leszno J ANOWSKY, a subject of the King of Hungary, of the city of Toronto, in the county'of York, in the Province of Ontario, Canada, have invented certain new and useful Improvements in Processes for Treatin Commercial Calcium Carbid, of which the following is the specification.

My invention relates to an improved pr0cess for treating commercial calcium carbid, whereby it may be rendered air proof, so that it must come in contact with water before generation takes place.

A further object is to prevent the losing of any gas during shipment due to exposure from opening and closing the box in which it is contained.

A still further obect is to make the chemical actionof the cal-bid when so treated slow, so as to reduce the amount. of heat generated, thus g'ii 'ing a, purer gas.

Other objects are to eliminate impurities, so that the tubes Will not be clogged, to make the conveying of the gas cheaper by the utilization of any suitable tubular conveyer, such as small wire tubing, iron pipes or rubber without liability of any corrosion ,of these or indeed of the mantles to which the gas passes.

With these and other objects in view I shall now describe my process whereby commercial carbid is treated. I first take eightyfive per cent. of fatty matter either animal, vegetable, or mineral oil, and fifteen per cent. of water glass (sodium silicate). I

first apply heat to the sodium silicate to suchan extent as to eliminate the water therein and-reduce it to a powder. doneby electrical heat or heat produced in any other suitable manner, electrically applied heat being the most convenient. 1 then mix with fifteen per cent. of powdered material, sodium silicate with the water removed, that is, a. powder, the eighty-five per cent. of

Specification of Letters Patent.

This may be I fatty matter aforesaid. This has the effect of producing a liquid, which is in no sense a soap.

1 then take the calcium car-bid and this liquid, and by means of electrical, mechanical, or heat; energy cause the liquid. to permeate the carbid. As these methods form no part of my present. inventioml do not describe them. r

Such commercial carbid treated as I have described carries out the objects, which I have hcreinbefore enumerated in this specification.

In addition to this I may say that the gas produced is excellent for burning with a mantle. The residue of the treated carbid, when used in a machine, is not sticky but is similar to sea sand, thus rendering it removable from the generator very easily. Any carbid, which remains or is in the generator, is not lost but may be used. As far as the heating qualities are concerned my treated carbid is of the same heating value as commercial carbid.

The proportion of-fat-ty matter and pow "der may be varied tea more or less extent.

\Vhat I claim as'my invention is.

1. The herein described -meth9d of producing an air proof, calcium, carbid from commercial cal-bid consistingoftreating earbid with a compo'snhomof iatty matter-and Patented July 1, 1919.

Application filed September 18, 1917. Serial No. 191,995.

water glass (sodium. silicatefhavin'g' the water removed to produce a powder previous to its mixture with the fatty matter.

2. A process which comprises removing the water from (sodium silicate) water glass to produce a powder and then mixing such powder in the proportion of fifteen per cent. thereof with eighty-five'percent. of fatty matter. 1

. LAszLo JANOWSKY.

itnesses V B. Born, M. EGAN. 

